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US3932655A Expired / Lapsed US ⏱️ 0.0 years remaining

Surgical skin scrub

Assignee: International Pharmakon Lab Inc
•
Filing: 1974-04-08
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Granted: 1976-01-13
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Expires: 1994-04-08
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Abstract

Abstract A disinfecting concentrate includes a mixture of n-alkylated benzalkonium halides, preferably, n-alkylated benzyl ammonium chlorides or benzalkonium chlorides, each having from 8 to 18 carbon atoms in their respective alkyl portions, preferably 12 to 18 carbon atoms, and mixtures thereof. The concentrate further includes a preservative and water. Use solutions prepared from the concentrate contain minor amounts thereof in order to be efficacious.

Inventors

  • 👤 Richard H. Conn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 17:12
CPC Classifications
A; A01; A01N; A01N31/00; A01N31/08; A01N31/12

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 251 words
A surgical skin scrub of the type adapted for topical application to a user's skin consisting essentially of: a. from about 99.0 to 99.9 percent by weight of inert ingredients, and b. from about 0.1 to 1.0 percent by weight of an active ingredient consisting essentially of: 1. from about 25 to 50 percent by weight of a chelating agent selected from the group consisting of ethylene diamine tetraacetic acid, disodium ethylene diamine tetraacetic acid, gluconic acid, lactic acid, citric acid, sodium gluconate, sodium lactate, sodium citrate, potassium gluconate, potassium lactate and potassium citrate, and 2. from about 50 to 75% by weight of a mixture of three n-alkyl benzalkonium chlorides, the first and second of which are of the formula: ##SPC4## wherein R is hydrogen, R 5 is n-alkyl having from 12 to 18 carbon atoms or mixtures thereof, the first benzalkonium chloride having an R 5 distribution of C 12 about 5 percent; C 14 about 60 percent; C 16 about 30 percent and C 18 about 5 percent; the second benzalkonium chloride having an R 5 distribution of C 12 about 50 percent; C 14 about 30 percent; C 16 about 15 percent and C 18 about 5 percent; and the third benzalkonium chloride is of the formula: ##SPC5## wherein R 6 is n-alkyl having a distribution of C 12 from 65 to 75 percent and C 14 from 25 to 35 percent, and wherein the benzalkonium chlorides are present in a respective weight ratio of about 2:1:2.
Claim 2
Dependent Claim 251 words
A surgical skin scrub of the type adapted for topical application to a user's skin consisting essentially of: a. from about 99.0 to 99.9 percent by weight of inert ingredients, and b. from about 0.1 to 1.0 percent by weight of an active ingredient consisting essentially of: 1. from about 25 to 50 percent by weight of a chelating agent selected from the group consisting of ethylene diamine tetraacetic acid, disodium ethylene diamine tetraacetic acid, gluconic acid, lactic acid, citric acid, sodium gluconate, sodium lactate, sodium citrate, potassium gluconate, potassium lactate and potassium citrate, and 2. from about 50 to 75% by weight of a mixture of three n-alkyl benzalkonium chlorides, the first and second of which are of the formula: ##SPC4## wherein R is hydrogen, R 5 is n-alkyl having from 12 to 18 carbon atoms or mixtures thereof, the first benzalkonium chloride having an R 5 distribution of C 12 about 5 percent; C 14 about 60 percent; C 16 about 30 percent and C 18 about 5 percent; the second benzalkonium chloride having an R 5 distribution of C 12 about 50 percent; C 14 about 30 percent; C 16 about 15 percent and C 18 about 5 percent; and the third benzalkonium chloride is of the formula: ##SPC5## wherein R 6 is n-alkyl having a distribution of C 12 from 65 to 75 percent and C 14 from 25 to 35 percent, and wherein the benzalkonium chlorides are present in a respective weight ratio of about 2:1:2.
Claim 3
Dependent Claim 43 words
The skin scrub concentrate of claim 1 wherein the inert ingredients includes from about 4 to 6%, by weight, of a surfactant mixture consisting essentially of an amphoteric and anionic surfactant present in a respective weight ratio of from about 50:1 to 100:1.
Claim 4
Dependent Claim 28 words
The skin scrub concentrate of claim 2 wherein the amphoteric surfactant is an alkali metal salt of an alkylated amino propionate and the anionic surfactant is an alkanolamine.
Claim 5
Dependent Claim 41 words
A surgical skin scrub consisting essentially of: an aqueous solution of the concentrate of claim 1, the aqueous solution containing from about 100 to 2000 parts per million, by weight, of the concentrate per million parts by weight of the scrub.

References Cited (Backward Citations)

US3052604A Cited
GB937937A Cited
US3472939A Cited
FR1578111A Cited
US3525793A Cited
US3694262A Cited
US3694365A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-01-12 1979-07-14 1980-01-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-01-12 1983-07-14 1984-01-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-01-12 1987-07-14 1988-01-13 $7700.00 Window Closed / Lapsed

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